Added find-by-task and remove function

src/Entity/TaskExecutionRepository.php

@@ -41,6 +41,16 @@ public function persist(TaskExecutionInterface $execution)
         return $this;
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function remove(TaskExecutionInterface $execution)
+    {
+        $this->_em->remove($execution);
+
+        return $this;
+    }
+
     /**
      * {@inheritdoc}
      */
@@ -87,6 +97,19 @@ public function findByStartTime(TaskInterface $task, \DateTime $scheduleTime)
         }
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function findByTask(TaskInterface $task)
+    {
+        return $this->createQueryBuilder('e')
+            ->innerJoin('e.task', 't')
+            ->where('t.uuid = :uuid')
+            ->setParameter('uuid', $task->getUuid())
+            ->getQuery()
+            ->getResult();
+    }
+
     /**
      * {@inheritdoc}
      */

src/Entity/TaskRepository.php

@@ -46,6 +46,16 @@ public function persist(TaskInterface $task)
         return $this;
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    public function remove(TaskInterface $task)
+    {
+        $this->_em->remove($task);
+
+        return $this;
+    }
+
     /**
      * {@inheritdoc}
      */

src/Resources/config/doctrine/TaskExecution.orm.xml

@@ -24,7 +24,7 @@
         <field name="status" type="string" length="20"/>
 
         <many-to-one target-entity="Task\TaskBundle\Entity\Task" field="task">
-            <join-column name="task_id" referenced-column-name="uuid" on-delete="SET NULL"/>
+            <join-column name="task_id" referenced-column-name="uuid" on-delete="CASCADE"/>
         </many-to-one>
 
     </entity>